THORLABS SPDMH2 Скачать руководство пользователя страница 12 | Manualshive

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THORLABS SPDMH2 Скачать руководство пользователя страница 12

Page 8

MTN028160-D02

SPDMHx Series

3 Operation

Impact of Optical Power

Single photon detection is applicable to very low light levels. The measured photon rate de-
creases with increasing optical power. Thus, at high optical power, the measured photon rate
will differ from the real photon rate. The following graph helps to understand the optical power
level for which the actual single photon counting method is relevant.

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Содержание SPDMH2

Страница 1: ...Single Photon Detectors SPDMH2 SPDMH3 SPDMH2F SPDMH3F Operation Manual 2022...

Страница 2: ...Version Date 1 1 23 May 2022 Copyright 2022 Thorlabs...

Страница 3: ...ting Function and TTL Output 6 3 4 2 Optimizing Performance 4 Maintenance and Service 9 5 Appendix 10 10 5 1 Technical Data 11 5 2 Performance Plots 11 5 2 1 Photon Detection Efficiency 12 5 3 Dimensi...

Страница 4: ...king forward to hearing from you Thorlabs GmbH Warning Sections marked by this symbol explain dangers that might result in personal injury or death Always read the associated information carefully bef...

Страница 5: ...de op tical fiber with an FC connector item s SPDMH2F or SPDMH3F Applications range from quantum technologies and cryptography to particle sizing fluorescence analysis LIDAR and spectroscopy Attention...

Страница 6: ...er appears to be damaged keep it until you have inspected the contents for completeness and tested the SPDMHx Series mechanically and electrically Verify that you have received the following items wit...

Страница 7: ...he components of the SPDMH2 and SPDMH3 free space detectors are labeled in the image of the SPDMH2 SPDMH2 and SPDMH3 components look identical SPDMH2F and SPDMH3F The components of the SPDMH2F and SPD...

Страница 8: ...weight of the detector into account when this mounting style is used Base Plate Mounting The base plate of the SPDMHx Series detector can be fastened on a bread board using the CL4 table clamps Alter...

Страница 9: ...is therefore recommended Please see the Mounting section for more information Ensure that background light does not reach the photosensitive area This can be achieved by mounting lens tubes onto the C...

Страница 10: ...window as gating can deselect longer time periods with no signal Also applications with very weak signal and high background light profit from the gating in that the background signal within periods...

Страница 11: ...ntly by increasing incident photon numbers is called saturation level Precautions should be taken to avoid prolonged excessive light levels that may damage the SPDMHx Series detector Correction Factor...

Страница 12: ...to very low light levels The measured photon rate de creases with increasing optical power Thus at high optical power the measured photon rate will differ from the real photon rate The following grap...

Страница 13: ...s is not water resistant Attention To avoid damage to the instrument do not expose it to spray liquids or solvents The unit does not need a regular maintenance by the user It does not contain any modu...

Страница 14: ...n 0 5 V 2 4 V Trigger Input Response Time Closing Signal Opening Signal 15 ns Typ to 20 ns Max 60 ns Typ to 65 ns Max Afterpulsing Probability 0 2 Typ Delay between Photon Impact and TTL Pulse 30 ns T...

Страница 15: ...GRIN lens fo cuses the light onto a spot of 70 mm diameter in the center of the detector 2 Specifications are valid for modules without FC connector 3 Default in the absence of a TTL signal is 2 4 V a...

Страница 16: ...Page 12 MTN028160 D02 SPDMHx Series 5 Appendix 5 3 Dimensions SPDMH2 SPDMH2 and SPDMH3 outer dimensions are identical...

Страница 17: ...Rev 1 1 23 May 2022 2022 Thorlabs Page 13 SPDMHx Series 5 Appendix SPDMH2F SPDMH2F and SPDMH3F outer dimensions are identical...

Страница 18: ...serts If necessary ask for replacement packaging Refer servicing to qualified personnel Changes to this device cannot be made nor may components not supplied by Thorlabs be used without written consen...

Страница 19: ...Rev 1 1 23 May 2022 2022 Thorlabs Page 15 SPDMHx Series 5 Appendix 5 5 Certifications and Compliances...

Страница 20: ...starting with the date of shipment in accordance with and subject to the terms and conditions set forth in Thorlabs General Terms and Conditions of Sale which can be found at General Terms and Conditi...

Страница 21: ...of Life Policy WEEE Thorlabs verifies our compliance with the WEEE Waste Electrical and Electronic Equipment direct ive of the European Community and the corresponding national laws Accordingly all e...

Страница 22: ...www thorlabs com...

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